Custom Tubing adapter STL file ⌀ 38–34 mm (Length: 28 mm) 📦#4051

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Inline sleeve ⌀38 mm to ⌀34 mm in STL 3D format. Length of this connector is 28 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 10 mm as well. The ends have a fillet to make tube connection easier.
Generation date: 2025-11-29
3D Model Tubing adapter STL file ⌀ 38–34 mm (Length: 28 mm)

3D model download

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  • inline-tube-adapter-lenA10mm-d_model4051-nb0_dd{id}.stl : 7.1 Mo
STL Mesh quality : Linear deflection 0.05 Angular deflection 0.05
No compliance warranty No compliance warranty
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Values for this model

This model was generated by the Inline tube adapter template, with the following values:
Parameter Value
#1 side A length 10 mm (≃0.39 in)
#2 side A outer diameter 38 mm (≃1 1/2 in)
#3 side A thickness 3 mm (≃1/8 in)
#4 side B length 10 mm (≃0.39 in)
#5 side B outer diameter 34 mm (≃1.34 in)
#6 side B thickness 3 mm (≃1/8 in)
#7 transition length 8 mm (≃5/16 in)
#8 axis offset 0 mm (0 in)
#9 ends fillet fillet on both inside
and outside
Metadata Value
inner diameter (side A) 32 mm (≃1 1/4 in)
inner diameter (side B) 28 mm (≃1.10 in)
total length 28 mm (≃1.10 in)
illustration of the parameters
Parameter overview

Labels are used in the naming of the downloaded 3D files.

Parameter Label
#1 side A length lenA
#2 side A outer diameter diA
#3 side A thickness thA
#4 side B length lenB
#5 side B outer diameter diB
#6 side B thickness thB
#7 transition length tra
#8 axis offset ofs
#9 ends fillet fil

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To search for a model based on your own parameters, go to the template page Inline tube adapter 

Tube adapter STL 3D file ⌀ 32–31 mm (Length: 22 mm) (📦 #8961)

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Tube adapter STL 3D file ⌀ 32–31 mm (Length: 22 mm)
Straight tube connector ⌀32 mm to ⌀31 mm in STL 3D format. Final length of this sleeve is 22 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 9 mm, the smaller one of 8 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 9 mm
side A outer diameter 32 mm
side A thickness 3 mm
side B length 8 mm
side B outer diameter 31 mm
side B thickness 3 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 38–31 mm (Length: 50 mm) (📦 #8960)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 38–31 mm (Length: 50 mm)
Inline tube junction ⌀38 mm to ⌀31 mm in STL 3D format. Final length of this adapter is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 22 mm, the smaller one of 20 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 22 mm
side A outer diameter 38 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 31 mm
side B thickness 3 mm
transition length 8 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 51–47 mm (Length: 30 mm) (📦 #5165)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 51–47 mm (Length: 30 mm)
Diameter adapter ⌀51 mm to ⌀47 mm in STL format. Total length of this sleeve is 30 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 10 mm as well. The ends are rounded.
Parameter Value Unit
side A length 10 mm
side A outer diameter 51 mm
side A thickness 2.5 mm
side B length 10 mm
side B outer diameter 47 mm
side B thickness 2.5 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm) (📦 #2189)

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Tube adapter STL 3D file ⌀ 35–30 mm (Length: 55 mm)
Inline tube junction ⌀35 mm to ⌀30 mm in STL format. Total length of this adapter is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 30 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
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Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm) (📦 #2197)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–29 mm (Length: 55 mm)
Inline tube reducer ⌀35 mm to ⌀29 mm in STL 3D format. Final length of this junction is 55 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 29 mm
side B thickness 3 mm
transition length 15 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 39–35 mm (Length: 60 mm) (📦 #4018)

1 object(s) - format STL
Tube adapter STL file ⌀ 39–35 mm (Length: 60 mm)
Straight tubing adapter ⌀39 mm to ⌀35 mm in STL format. Total length of this reducer is 60 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 39 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 35 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 60–48 mm (Length: 60 mm) (📦 #8486)

1 object(s) - format STL
Tubing adapter STL file ⌀ 60–48 mm (Length: 60 mm)
Inline tube junction ⌀60 mm to ⌀48 mm in STL format. Total length of this sleeve is 60 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 20 mm
side A outer diameter 60 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 48 mm
side B thickness 3 mm
transition length 20 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 42–21 mm (Length: 60 mm) (📦 #8507)

1 object(s) - format STL
Tubing adapter STL file ⌀ 42–21 mm (Length: 60 mm)
Tube reducer ⌀42 mm to ⌀21 mm in STL 3D format. Length of this junction is 60 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 30 mm, the smaller one of 20 mm. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 30 mm
side A outer diameter 42 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 21 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 72–33 mm (Length: 48 mm) (📦 #2709)

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Tube adapter STL file ⌀ 72–33 mm (Length: 48 mm)
Tube reducer ⌀72 mm to ⌀33 mm in STL format. Length of this connector is 48 mm. The thickness of the tubes is identical: 3.2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 8 mm. The ends feature a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 72 mm
side A thickness 3.2 mm
side B length 8 mm
side B outer diameter 33 mm
side B thickness 3.2 mm
transition length 20 mm
axis offset 0 mm
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Tube adapter STL file ⌀ 50–20 mm (Length: 26 mm) (📦 #8872)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–20 mm (Length: 26 mm)
Straight tube reducer ⌀50 mm to ⌀20 mm in STL 3D format. Total length of this connector is 26 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 8 mm, the smaller one of 8 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 8 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 8 mm
side B outer diameter 20 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 47–42 mm (Length: 48 mm) (📦 #6947)

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Tubing adapter STL file ⌀ 47–42 mm (Length: 48 mm)
Tubing reducer ⌀47 mm to ⌀42 mm in STL 3D format. Final length of this junction is 48 mm. The larger-diameter tube has a thickness of 2.2 mm and a sleeve length of 25 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 13 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 47 mm
side A thickness 2.2 mm
side B length 13 mm
side B outer diameter 42 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
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Tubing adapter STL 3D file ⌀ 74–50 mm (Length: 50 mm) (📦 #5401)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 74–50 mm (Length: 50 mm)
Tubing adapter ⌀74 mm to ⌀50 mm in STL 3D format. Final length of this junction is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends are rounded to ease the connection.
Parameter Value Unit
side A length 20 mm
side A outer diameter 74 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 50 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm) (📦 #1124)

1 object(s) - format STL
Tube adapter STL file ⌀ 50–40 mm (Length: 50 mm)
Tube junction ⌀50 mm to ⌀40 mm in STL 3D format. Length of this coupler is 50 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 50 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 40 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm) (📦 #9056)

1 object(s) - format STL
Tubing adapter STL file ⌀ 30–17 mm (Length: 55 mm)
Inline tubing adapter ⌀30 mm to ⌀17 mm in STL format. Length of this junction is 55 mm. The larger-diameter tube has a thickness of 2 mm and a length of 25 mm. The smaller-diameter tube has a thickness of 3 mm and a length of 20 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 25 mm
side A outer diameter 30 mm
side A thickness 2 mm
side B length 20 mm
side B outer diameter 17 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 25–9 mm (Length: 50 mm) (📦 #4916)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 25–9 mm (Length: 50 mm)
Straight tubing adapter ⌀25 mm to ⌀9 mm in STL 3D format. Length of this sleeve is 50 mm. The larger-diameter tube has a thickness of 3 mm and a sleeve length of 20 mm. The smaller-diameter tube has a thickness of 2 mm and a length of 20 mm as well. The ends feature a fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 25 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 9 mm
side B thickness 2 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL file ⌀ 36–19 mm (Length: 26 mm) (📦 #2451)

1 object(s) - format STL (5.0/5) 1 vote(s)
Tube adapter STL file ⌀ 36–19 mm (Length: 26 mm)
Tube connector ⌀36 mm to ⌀19 mm in STL 3D format. Length of this adapter is 26 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 8 mm. The ends are rounded on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 10 mm
side A outer diameter 36 mm
side A thickness 3 mm
side B length 8 mm
side B outer diameter 19 mm
side B thickness 3 mm
transition length 8 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL 3D file ⌀ 35–18 mm (Length: 26 mm) (📦 #2450)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 35–18 mm (Length: 26 mm)
Inline tube reducer ⌀35 mm to ⌀18 mm in STL 3D format. Final length of this fitting is 26 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 8 mm. The ends are rounded on the inside to ease the connection.
Parameter Value Unit
side A length 10 mm
side A outer diameter 35 mm
side A thickness 3 mm
side B length 8 mm
side B outer diameter 18 mm
side B thickness 3 mm
transition length 8 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 77–53 mm (Length: 50 mm) (📦 #5407)

1 object(s) - format STL
Tube adapter STL file ⌀ 77–53 mm (Length: 50 mm)
Inline tube adapter ⌀77 mm to ⌀53 mm in STL 3D format. Final length of this adapter is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a sleeve length of 20 mm, the smaller one of 20 mm as well. The ends are rounded to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 20 mm
side A outer diameter 77 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 53 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 60–49 mm (Length: 55 mm) (📦 #2988)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 60–49 mm (Length: 55 mm)
Inline sleeve ⌀60 mm to ⌀49 mm in STL 3D format. Final length of this coupler is 55 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends are rounded.
Parameter Value Unit
side A length 25 mm
side A outer diameter 60 mm
side A thickness 2.5 mm
side B length 25 mm
side B outer diameter 49 mm
side B thickness 2.5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 60–51 mm (Length: 55 mm) (📦 #2994)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 60–51 mm (Length: 55 mm)
Straight sleeve ⌀60 mm to ⌀51 mm in STL format. Final length of this sleeve is 55 mm. The thickness of the tubes is identical: 2.5 mm. The larger-diameter tube has a sleeve length of 25 mm, the smaller one of 25 mm as well. The ends feature a fillet.
Parameter Value Unit
side A length 25 mm
side A outer diameter 60 mm
side A thickness 2.5 mm
side B length 25 mm
side B outer diameter 51 mm
side B thickness 2.5 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 15–13 mm (Length: 25 mm) (📦 #7675)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 15–13 mm (Length: 25 mm)
Straight tube coupler ⌀15 mm to ⌀13 mm in STL 3D format. Final length of this connector is 25 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a sleeve length of 10 mm, the smaller one of 10 mm as well. The ends have a fillet to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 10 mm
side A outer diameter 15 mm
side A thickness 2 mm
side B length 10 mm
side B outer diameter 13 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 81–51 mm (Length: 50 mm) (📦 #5408)

1 object(s) - format STL
Tubing adapter STL file ⌀ 81–51 mm (Length: 50 mm)
Tubing adapter ⌀81 mm to ⌀51 mm in STL format. Length of this reducer is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends have a fillet.
Parameter Value Unit
side A length 20 mm
side A outer diameter 81 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 51 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL 3D file ⌀ 74–59 mm (Length: 50 mm) (📦 #6935)

1 object(s) - format STL
Tubing adapter STL 3D file ⌀ 74–59 mm (Length: 50 mm)
Inline fitting ⌀74 mm to ⌀59 mm in STL format. Final length of this coupler is 50 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 20 mm, the smaller one of 20 mm as well. The ends feature a fillet to ease the connection.
Parameter Value Unit
side A length 20 mm
side A outer diameter 74 mm
side A thickness 3 mm
side B length 20 mm
side B outer diameter 59 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on bo...

Tube adapter STL 3D file ⌀ 16–12 mm (Length: 30 mm) (📦 #1513)

1 object(s) - format STL
Tube adapter STL 3D file ⌀ 16–12 mm (Length: 30 mm)
Straight tube fitting ⌀16 mm to ⌀12 mm in STL 3D format. Final length of this adapter is 30 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 15 mm. The ends have a fillet to ease the connection.
Parameter Value Unit
side A length 10 mm
side A outer diameter 16 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...

Tubing adapter STL file ⌀ 57–51 mm (Length: 30 mm) (📦 #3335)

1 object(s) - format STL
Tubing adapter STL file ⌀ 57–51 mm (Length: 30 mm)
Inline tube adapter ⌀57 mm to ⌀51 mm in STL 3D format. Final length of this reducer is 30 mm. The thickness of the tubes is identical: 3 mm. The larger-diameter tube has a length of 10 mm, the smaller one of 10 mm as well. The ends have a fillet on the inside to facilitate the connection of the two tubes.
Parameter Value Unit
side A length 10 mm
side A outer diameter 57 mm
side A thickness 3 mm
side B length 10 mm
side B outer diameter 51 mm
side B thickness 3 mm
transition length 10 mm
axis offset 0 mm
ends fillet fillet on th...

Tube adapter STL file ⌀ 16–12 mm (Length: 35 mm) (📦 #1097)

1 object(s) - format STL
Tube adapter STL file ⌀ 16–12 mm (Length: 35 mm)
Straight tube adapter ⌀16 mm to ⌀12 mm in STL 3D format. Length of this junction is 35 mm. The thickness of the tubes is identical: 2 mm. The larger-diameter tube has a length of 15 mm, the smaller one of 15 mm as well. The ends are rounded to make tube connection easier.
Parameter Value Unit
side A length 15 mm
side A outer diameter 16 mm
side A thickness 2 mm
side B length 15 mm
side B outer diameter 12 mm
side B thickness 2 mm
transition length 5 mm
axis offset 0 mm
ends fillet fillet on bo...